A notebook in which Paul McCartney drafted lyrics for 'Hey Jude' and 'Sgt. Peppers Lonely Hearts Club Band' is scrutinised by a member of Sotheby's staff August 6. The notebook, compiled by The Beatles' road manager Mal Evans is the centrpiece of a new sale of rock'n'roll memorabilia, and is expected to fetch at least 90,000 pounds sterling when it is auctioned next month.